An official website of the United States government
The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before
sharing sensitive information, make sure you’re on a federal
government site.
The site is secure.
The https:// ensures that you are connecting to the
official website and that any information you provide is encrypted
and transmitted securely.
Ahmed S, Lange RA, Hillis LD.Ahmed S, et al. Among authors: hillis ld.Am J Cardiol. 2008 Jan 15;101(2):245-7. doi: 10.1016/j.amjcard.2007.07.071.Am J Cardiol. 2008.PMID: 18178415
Lange RA, Moore DM Jr, Cigarroa RG, Hillis LD.Lange RA, et al. Among authors: hillis ld.J Am Coll Cardiol. 1989 Mar 15;13(4):825-31. doi: 10.1016/0735-1097(89)90223-4.J Am Coll Cardiol. 1989.PMID: 2926036Free article.